:root{--surface-primary:#f7f6f1;--surface-secondary:#eeece4;--surface-elevated:#fcfbf7;--surface-inverse:#20231f;--text-primary:#20231f;--text-secondary:#62685f;--text-tertiary:#858b82;--text-inverse:#f7f6f1;--border-default:#cfd1c9;--border-subtle:#dfe0d9;--accent-primary:#526b4e;--accent-hover:#40583d;--accent-soft:#dde5d9;--status-success:#526b4e;--status-warning:#8a681f;--status-error:#a4473f;--status-error-soft:#f1dfda;--status-info:#526b4e;--font-primary:"Avenir Next", Avenir, "Segoe UI", "Noto Sans JP", "Noto Sans KR", "Microsoft YaHei", system-ui, sans-serif;--font-mono:ui-monospace, "SFMono-Regular", Consolas, "Noto Sans Mono CJK KR", "Liberation Mono", monospace;--text-display:clamp(2.5rem, 6vw, 4.5rem);--text-h1:clamp(2rem, 4vw, 3rem);--text-h2:1.75rem;--text-h3:1.125rem;--text-body-lg:1.125rem;--text-body:1rem;--text-body-sm:.875rem;--text-caption:.75rem;--text-overline:.6875rem;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-16:4rem;--space-20:5rem;--space-24:6rem;--content-max:75rem;--reading-max:40rem;--control-height:2.75rem;--radius-sm:.375rem;--radius-md:.625rem;--radius-lg:1rem;--border-width:.0625rem;--border-strong:var(--border-width) solid var(--border-default);--border-soft:var(--border-width) solid var(--border-subtle);--focus-ring:.125rem solid var(--accent-primary);--duration-micro:.12s;--duration-standard:.24s}*,:before,:after{box-sizing:border-box}html{background:var(--surface-primary);color:var(--text-primary);font-family:var(--font-primary);scroll-behavior:smooth}body{min-inline-size:20rem;margin:0}a{color:inherit}button{font:inherit}a:focus-visible,button:focus-visible{outline:var(--focus-ring);outline-offset:var(--space-1)}::selection{background:var(--accent-soft);color:var(--text-primary)}html:lang(ja) body h1,html:lang(ja) body h2,html:lang(ja) body h3,html:lang(zh) body h1,html:lang(zh) body h2,html:lang(zh) body h3,html:lang(ko) body h1,html:lang(ko) body h2,html:lang(ko) body h3{letter-spacing:0}:lang(ja),:lang(zh){line-break:strict;word-break:normal}:lang(ko){line-break:strict;word-break:keep-all}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}